Improvement in sulky-plows



2 Sheets--Sheet-1. I n. Asians.

} Sulky-Plows. 10,152,771; Patentedluly 7,1874.

THE SIEAPHIC C0,?HOTD-LJYH, 398014 PARK PLACE, N36

2 Sheets--Sheet 2.

n'. AQSEARS.

' Sulky-Plows.

Patented July. 7, I874.'

v THE GRAPHIC co. rl-loTc-Lnus a 4| PARK PLAc u UNITED STATE PATENT Urrron DELOS A. SEARS, or RooKFoRD, ILLINOIS.

IMPROVEMENT IN SULKY-PLOWS.

Specification forming part of Letters Patent No. 152,771, dated July 7, 1874; application illt d March 15. 1873.

. and useful Improvements in Sulky-Plows, of

which the following is a full, clear, and exact description, reference being had to the accompanying drawings making part of this specifi cation, and in which Figure 1 represents a view in elevation of myimproved sulky-plow, partly in section, on the line 1 1 of Fig. 2, the near wheel, the sector-rack of the lifting-lever, and one of the seat-standards being .broken away to show other parts more clearly. Fig. 2 represents a plan or top view of the machine, the seat, however, being omitted. Fig. 3 is a vertical transverse section through the machine on the line 2 2 of Fig. 2that is, the line of the axle looking toward the tongue. Fig. 4 represents a view of the under side of the forward por= tion of the main beam, showing the connection of the rolling colter therewith.

My invention relates to that class of agricultural implements known as sulky or gang plows; and its object is to increase the efficiency of the implement. The subject-matter of my invention is hereinafter specified.

In plows of this class onewheel usually runs in a previously-formed furrow, while the other is frequently required to run on a higher plane. It is desirable that the plow should maintain its horizontal position while doing its work, as any inclination of its share would impede the proper performance of its func-" tions. As this inclination of the plow would necessarily result from allowing the axle to be inclined, as would naturally result from the wheels running on different horizontal planes, some provision must be made to obviate this difficulty, and various means heretofore have been employed to this end. I at tain this end by mounting one of the wheels, 0, on a crank-arm or bracket-arm, I), projecting above an axle, A, so that the axle always runs in a uniform relation to the wheel.

' segment-rack rocking on a pivot, 2, gears into this rack is, and serves to raise and lower the land-wheel, or to hold it in any'desired position. The rocking segment is controlled by a hand lever, M, provided with a spring-catch, S, taking into a sector-rack, L, on the axle, parallel to which the lever moves, with its handle in easy reach of the driver. the land-wheel can be adjusted to any desired relation with the axle. (See Fig. 3.) A seat, 0, for the driver is mounted on two standards, B B, curved as shown, pivoted on the axle, so as to be capable of rocking backward and forward, and provided on their front edges with rack-teeth It. (See Fig. 1.) Frictionrollers r on the beam 0, behind the seatstandards, prevent the sea-t from moving back too far. A beam or frame-piece, O, is pivoted at its front end in brace-rods at, so as to rock freely vertically therein, its rear end being also free to move vertically between the seat-standards, which serve as guides for it.

This beam is raised, lowered, or held in any position desired by means of two sector-gears, G, mounted in a rock-shaft on the framebeanr O, and gearing into the racks on the seatstandards, and controlled by a hand-lever, I, and spring-detent p, the latter engaging with a sector-rack, II, on the beam U. By this means the frame-beam (3 always remains parallel with itself when raised or lowered. A plow-beam, D, carrying a suitable plow, e, is pivoted to the frame-beam G by a joint-pin,

is, passing through joint-plates f and 9 on the A tongue, E, is pivoted on a horizontal bolt,

6, so as to be capable of swinging freely up and down on this pivot. This movement may, however, be restrained, when desired, by a pin, a, hooking into a plate, m, underneath the tongue and passing up through it, and fastened by a pin or nut above the tongue and under the foot-rest bracket 0. A rolling colter, N, turns in bearings in a yoke, a, fitted adjustably on a stem, V, and held in any position.

By this meansdesired by a set-screw. Tlie colter swings freely around its stem V, which is mounted on a radius-arm, P, swinging on its pivot in the frame-beam G. A quadrant-flange, W, on the radius-arm serves to lock the latter in any desired position by means of an overlapping hook-bolt, X, (see Figs. 1 and 4,) which passes down through the frame-beam, and is provided with a clamp-nut, no, to regulate the pressure on the quadrant-flange. By this means the colter is not only free to vibrate, but can also be adjusted laterally, as required. A draftrod, 0), is hooked 011 the frame-beam at its rear end, and attached at its forward end to a drawbar, Z, by means of a pin, which may be inserted in any one of a series of holes therein, to vary the draft laterally. The double-trees are pivoted to this pin.

By the foregoing description it will be seen that the wheels of my improved plow can be set to run on different levels without disturbing the parallelism of the axle or plow; that the machine can be used either with a stiff or a rigid tongue; that the driver, while in his seat, can raise or lower the frame-beam and plows without cantin g or tipping them back- 'ward offorward; that the plows can be rigidly held, or free to swing laterally, at pleasure; that the oolter can readily be adjusted to conform to the plows, and that the draft can also be adjusted to balance the side draft properly. The colter being forward of the axle, and the plow behind it, the former has no tendency to lift the latter, but rather to cause it torun deeper into the ground.

The operation of the plow will readily be understood from the foregoing description.

It is obvious that more than one plow may be used, and my improvements apply as well to gt ng as to sulkyplows.

I claim as my invention 1. The combination of the wheels, the axle, the frame-beam pivoted on the brace-rods, the seat-standards hinged to the axle and serving as guides to the frame-beam, the segmentgears Gr, mounted on a rock-shaft in the framebeam, gearing into racks on the seat-standards, and controlled by the hand-lever, and sectorrack on the frame-beam, all these members being constructed and operating in combination, substantially as described, to raise, lower, andadjust the frame-beam independently of the axle and without tipping the plows, as set forth.

2. The combination of the wheels, the axle, the laterally-swinging plow-beam, the Vertically-adjustable frame-beam, and the tongue hinged thereto, to play freely vertically, or to be locked rigidly, when desired, all these members being constructed and operating in corn bination, as set forth.

3. The combination of the rolling colter, its radius-arms, quadrant-flange, and hook-bolt, these members being constructed and operating in combination, substantially as set forth,

to render the colter laterally adjustable.

DELOS A. SEARS. Witnesses:

W. T. HYDE, JACOB BEHEL. 

